W110 type weighing sensor

Abstract

The utility model provides a W110 type weighing sensor, relates to the technical field of elevator weighing sensor installation, and aims to solve the problems that a conventional sensor can only be installed between an upper rope hitch plate and a lower rope hitch plate, is positioned through bolt installation holes, is high in positioning error and is not easy to install and maintain. The elastic body is of a segmented structure and is divided into an upper segment and a lower segment, strain cavities are symmetrically distributed in the upper segment, strain gauges are installed at the two ends of each strain cavity, inward-concave type blocking pieces are installed on the outer sides of the strain gauges, and the inward-concave type blocking pieces are connected with the upper segment in a sealed mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator weighing sensor installation technical field especially relates to a W110 type weighing sensor. BACKGROUND

[0002] With the rapid development of science and technology, as the main traffic tool in the building, elevator technology is also in the high -speed development, and the related new technology, new material, new technology are gradually popularized and applied in elevator industry. Elevator sensor industry is an important part of current intelligent building field, along with the advancement of urbanization and people's demand for life quality is unceasingly promotes elevator weighing sensor is the core component of guaranteeing elevator safe operation, and its working principle is based on resistance strain effect. When the elevator car carries the weight, the elastic body of the sensor deforms, causes the resistance value change of the resistance strain gauge pasted on its surface. This change is converted into a voltage signal through the wheatstone bridge circuit, and then is analyzed as weight data by the control system. Common types include bridge type and spoke type sensor, the former is installed at the bottom of the car, and the latter is used in the rope head combination.

[0003] The existing sensor can only be installed between the upper and lower rope head plates, and is positioned through the bolt mounting hole, so the positioning error is high, and the installation and maintenance are not easy, therefore, it is particularly important to design a W110 type weighing sensor to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a W110 type weighing sensor, which can be installed between the upper and lower rope head plates, and is positioned through the bolt mounting hole, so the positioning error is high, and the installation and maintenance are not easy, therefore, it is particularly important to design a W110 type weighing sensor to solve the above technical problems.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a W110 type weighing sensor, which comprises an elastic body, the elastic body adopts a segmented structure design and is divided into an upper segment and a lower segment, a strain cavity is symmetrically arranged in the upper segment, strain gauges are installed at both ends of the strain cavity, recessed baffles are installed on the outer sides of the strain gauges, and the recessed baffles are sealingly connected with the upper segment.

[0006] Preferably, a through hole is arranged at the middle position of the elastic body.

[0007] Preferably, two groups of threaded holes are arranged in the lower segment.

[0008] Preferably, two groups of circular holes are arranged in the upper segment.

[0009] Preferably, the four edges of the elastic body are provided with rounded corners.

[0010] Preferably, waterproof plugs are installed on the elastic body through screws.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are that,

[0012] In the utility model, in use, the elastic body is arranged into two sectional structures of upper section and lower section, and a round hole and a threaded hole structure are arranged in the elastic body, which facilitates installation and connection with the upper and lower rope head plates, the elastic body can pass through the rope head rod structure, the strain gauge and the concave baffle cooperate with each other to realize relative sealing at the elastic body port position, compared with the conventional bolt mounting hole positioning installation, the sensor structure of the utility model has the advantages of simple structure, easy work production and processing, compact overall structure, reasonable space layout, solves the problems that the existing sensor can only be installed between the upper and lower rope head plates, and positioning error is high and difficult to install and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an exploded view of the W110 type load cell of the utility model;

[0014] Figure 2 It is a front view of the W110 type load cell of the utility model;

[0015] Figure 3 It is Figure 2 A-A direction sectional view.

[0016] Legend: 1, elastic body; 101, through hole; 102, round hole; 103, threaded hole; 104, round corner; 105, upper section; 106, lower section; 2, strain gauge; 3, waterproof plug; 301, screw; 4, strain cavity; 5, concave baffle. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described below in combination with the drawings and examples. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiments disclosed in the following description.

[0019] The utility model provides a kind of W110 type load cell, including elastomer 1, the four edges of elastomer 1 are set as fillet 104, elastomer 1 adopts subsection structure design respectively as upper segment 105 and lower segment 106, through hole 101 is arranged at the middle position of elastomer 1, symmetrically distributed strain cavity 4 is in upper segment 105, strain gauge 2 is installed at the both ends of strain cavity 4, recessed baffle 5 is installed outside strain gauge 2, recessed baffle 5 is connected with upper segment 105 using sealing, two groups of threaded holes 103 are arranged in lower segment 106, two groups of round holes 102 are arranged in upper segment 105, waterproof plug 3 is installed on elastomer 1 by screw 301,

[0020] W110 type load cell is used in practice, rope head rod, upper rope head plate and lower rope head plate are not shown in the scheme, through hole 101 is arranged in elastomer 1, can be worn in rope head rod, elastomer 1 is provided with two groups of installation round holes 102 and two groups of threaded holes 103, is connected with upper rope head plate and lower rope head plate respectively, fillet 104 is arranged in the four edges of elastomer 1, reduces stress concentration, strain gauge 2 is arranged in two groups in elastomer 1, and two groups of recessed baffle 5 are arranged, waterproof plug 3 is installed on elastomer 1 by screw 301, sensor structure is simple, installation is convenient, can be installed through rope head rod, reduces installation error, elastomer 1 is provided with two subsection structures of upper segment 105 and lower segment 106, and round hole 102 and threaded hole 103 structure are arranged in elastomer 1, facilitate with upper rope head plate and lower rope head plate installation connection, elastomer 1 overall structure can pass through rope head rod structure, strain gauge 2 and recessed baffle 5 are mutually cooperated to complete the relative sealing of elastomer 1 port position, compared with the positioning installation of conventional bolt installation port, the sensor structure of the technical scheme of the utility model, simple structure, easy to work production and processing, overall structure is compact, space layout is reasonable.

[0021] Working principle: rope head rod, upper rope head plate and lower rope head plate are not shown in the scheme, through hole is arranged in elastomer, can be worn in rope head rod, elastomer is provided with two groups of installation round holes and two groups of threaded holes, is connected with upper rope head plate and lower rope head plate respectively, fillet is arranged in the four edges of elastomer, reduces stress concentration, strain gauge is arranged in two groups in elastomer, and two groups of recessed baffle are arranged, waterproof plug is installed on elastomer by screw, sensor structure is simple, installation is convenient, can be installed through rope head rod, reduces installation error.

Claims

1. A W110 type load cell, comprising an elastic body (1), characterized in that, The elastic body (1) adopts a segmented structure design, consisting of an upper segment (105) and a lower segment (106). The upper segment (105) has symmetrically distributed strain chambers (4), strain gauges (2) are installed at both ends of the strain chambers (4), and concave baffles (5) are installed on the outer side of the strain gauges (2). The concave baffles (5) are sealed to the upper segment (105).

2. The W110 type weighing sensor according to claim 1, characterized in that, A through hole (101) is provided at the middle position of the elastomer (1).

3. The W110 type weighing sensor according to claim 1, characterized in that, The lower section (106) is provided with two sets of threaded holes (103).

4. The W110 type weighing sensor according to claim 1, characterized in that, The upper section (105) is provided with two sets of circular holes (102).

5. The W110 type weighing sensor according to claim 1, characterized in that, The four sides of the elastomer (1) are rounded (104).

6. The W110 type weighing sensor according to claim 1, characterized in that, A waterproof plug (3) is mounted on the elastomer (1) by screws (301).

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